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@inquirer/ansi

packages/ansi/README.md

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@inquirer/ansi

A lightweight package providing ANSI escape sequences for terminal cursor manipulation and screen clearing.

Installation

<table> <tr> <th>npm</th> <th>yarn</th> </tr> <tr> <td>
sh
npm install @inquirer/ansi
</td> <td>
sh
yarn add @inquirer/ansi
</td> </tr> </table>

Usage

js
import {
  cursorUp,
  cursorDown,
  cursorTo,
  cursorLeft,
  cursorHide,
  cursorShow,
  eraseLines,
} from '@inquirer/ansi';

// Move cursor up 3 lines
process.stdout.write(cursorUp(3));

// Move cursor to specific position (x: 10, y: 5)
process.stdout.write(cursorTo(10, 5));

// Hide/show cursor
process.stdout.write(cursorHide);
process.stdout.write(cursorShow);

// Clear 5 lines
process.stdout.write(eraseLines(5));

Or when used inside an inquirer prompt:

js
import { cursorHide } from '@inquirer/ansi';
import { createPrompt } from '@inquirer/core';

export default createPrompt((config, done: (value: void) => void) => {
  return `Choose an option${cursorHide}`;
});

API

Cursor Movement

  • cursorUp(count?: number) - Move cursor up by count lines (default: 1)
  • cursorDown(count?: number) - Move cursor down by count lines (default: 1)
  • cursorTo(x: number, y?: number) - Move cursor to position (x, y). If y is omitted, only moves horizontally
  • cursorLeft - Move cursor to beginning of line

Cursor Visibility

  • cursorHide - Hide the cursor
  • cursorShow - Show the cursor

Screen Manipulation

  • eraseLines(count: number) - Clear count lines and position cursor at the beginning of the first cleared line

License

Copyright (c) 2025 Simon Boudrias (twitter: @vaxilart)

Licensed under the MIT license.